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Shock (mechanics) print that page

A mechanical or physical shock is a sudden acceleration or deceleration caused, for example, by impact, drop, kick, earthquake , or explosion . Shock is a transient physical excitation. Shock is usually measured by an accelerometer . This describes a shock pulse as a plot of acceleration

wikipedia.org | 2011/4/18 5:29:39

Shock absorber print that page

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A shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy . It is a type of dashpot . Contents 1 Nomenclature 2 Description 3 Explanation 4 Applications 4.1 Vehicle suspension 4.2 Structures 4.3 Electrical Generation

Bow shock (aerodynamics) print that page

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A bow shock , also called a detached shock , is a curved, stationary shock wave that is found in supersonic flow past a finite body. Unlike an oblique shock , the bow shock is not necessarily attached to the tip of the body. Oblique shock angles are limited in formation and are based

Scramjet print that page

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A scramjet ( s upersonic c ombustion ramjet ) is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow. As in ramjets, a scramjet relies on high vehicle speed to forcefully compress and decelerate the incoming air before combustion (hence ram

Aircraft flight mechanics print that page

In aeronautics , aircraft flight mechanics is the study of the forces that act on an aircraft in flight, and the way the aircraft responds to those forces. [ 1 ] Aircraft flight mechanics are relevant to gliders , helicopters and aeroplanes . An Aeroplane (Airplane in US usage), is

wikipedia.org | 2011/2/1 18:59:52

Control line print that page

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Models on lines and flying in circles predate manned flight. [ 1 ] Early versions merely constrained the model to fly in a circle but offered no control. This is known as Round-the-pole flying . The origins of control-line flight are obscure but the first person to use a recognizably modern

Aerodynamics print that page

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flow around solid objects of various shapes. Evaluating the lift and drag on an airplane or the shock waves that form in front of the nose of a rocket are examples of external aerodynamics. Internal aerodynamics is the study of flow through passages in solid objects. For instance, internal

Hydraulic jump print that page

Tryweryn-raft

A hydraulic jump is a phenomenon in the science of hydraulics which is frequently observed in open channel flow such as rivers and spillways . When liquid at high velocity discharges into a zone of lower velocity, a rather abrupt rise occurs in the liquid surface. The rapidly flowing liquid

Bond print that page

Queen , a 2000 High Court of Australia case [ edit ] Physical sciences Bond number , in fluid mechanics , a dimensionless number expressing the ratio of gravitational forces to surface tension forces Chemical bond , the physical phenomenon of chemical substances being held together by

wikipedia.org | 2011/7/29 11:57:45

John von Neumann print that pageTimeline of John von Neumann

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Von Neumann was a pioneer of the application of operator theory to quantum mechanics , in the development of functional analysis , a principal member of the Manhattan Project and the Institute for Advanced Study in Princeton (as one of the few originally appointed), and a key figure in